Elementary Algebra

by
Kaufmann, Jerome; Schwitters, Karen;

Published by
Cengage Learning

ISBN 10:
1285194055

ISBN 13:
978-1-28519-405-9

Appendix - Extra Word Problems: 87

Answer

We first translate the word problem into an equation by assigning variables for each desired value. We then use algebra to solve the equation. Finally, if necessary, we eliminate any values that do not make sense. (For instance, if we were solving for a width, we would not want to include negative or 0 values because they do not make sense.)

Work Step by Step

We first translate the word problem into an equation by assigning variables for each desired value. We then use algebra to solve the equation. Finally, if necessary, we eliminate any values that do not make sense. (For instance, if we were solving for a width, we would not want to include negative or 0 values because they do not make sense.)